Skin material for external use and antiprutiric agent for external use and wrinkle-instrument using the same

摘要

A skin composition for external use containing an acidic composition (A) which contains an alginate(s), at least one of weak acid selected from among phosphoric acid-type weak acids and ethylenediaminetetraacetic acid-type weak acids, and water; and a solidifying/gelling agent (B) containing a calcium salt(s) which is to be supplied to the acidic composition (A) sticking to the skin surface. In some cases, the skin composition for external use further includes an absorbent to be impregnated with the acidic composition (A).